Table 1: Electronic states of NO*production by electron impact on NO. The second column stands for the excitation threshold for most the NO electronic states. [¹³]

Electronic States	Threshold (eV)
X2Π	-
a4Π	4.747
A2S+	5.480
B2Π	5.642
b4S-	5.725
C2Πr	6.499
L’2Φ	6.599
D2S+	6.607
B’2Δ	7.442
E2S+	7.546
F2Δ	7.692
L2Π	7.757
H’2Π	7.773
H2S+	7.773
K2Π	7.997
M2S+	8.017
S2S+	8.324
N2Δ	8.383
O‘2Π, O2S+	8.430
Q2Π	8.515
T2S+	8.674
W2Π	8.772
Z2S+	8.860